package com.book.service;

import com.book.pojo.Readers;
import com.book.pojo.Signin;
import com.baomidou.mybatisplus.extension.service.IService;

import java.util.List;

/**
 * <p>
 *  服务类
 * </p>
 *
 * @author fk
 * @since 2023-10-12 17:37:48
 */
public interface SigninService extends IService<Signin> {

    List<Signin> getById(Long userId);

    int addById(Long readerId);


}
